CN106896566A - A kind of backing structure and liquid crystal display - Google Patents

Abstract

The invention discloses a backlight structure and a liquid crystal display device. The backlight structure comprises: an array substrate; a reflective polarizing layer arranged on the back of the array substrate; and a light source arranged on one side of the array substrate; wherein: the light source is used to The light emitted by it enters the array substrate from one side of the array substrate and irradiates on the reflective polarizing layer; The front side of the substrate is shot out. In the backlight structure provided by the present invention, the light emitted by the light source is injected into the array substrate from one side of the array substrate, reflected by the reflective polarizing layer on the back of the array substrate, and emitted from the front of the array substrate, replacing the existing plastic frame backlight The structure is simpler and thinner. When it is applied to liquid crystal display devices, there is no need to install a glass substrate. The resulting liquid crystal display device saves the thickness of a glass substrate. The thickness of the liquid crystal display device can be made smaller and the quality is also lower. Can be made lighter.

Description

A kind of backlight structure and liquid crystal display device

technical field

This article involves but is not limited to liquid crystal display technology, especially a backlight structure and a liquid crystal display device.

Background technique

Liquid crystal display devices are still the most common in the field of displays with huge demand. Consumers have always had a demand for thin and light displays, but they are limited by the current technology level and traditional display structures (the light guide plate faces the lower polarizing layer, the lower polarizing The layer is arranged on the glass substrate, the array layer is arranged on the glass substrate, the liquid crystal layer is arranged on the array layer, the display panel layer is arranged on the liquid crystal layer, and the upper polarizing layer is arranged on the display panel layer), and the thinning of the liquid crystal display device is difficult .

Contents of the invention

In order to solve at least one of the above-mentioned technical problems, this paper provides a backlight structure, which is simple in structure, light and thin, and the liquid crystal display device made when it is applied to liquid crystal display devices is also lighter and thinner, which can better meet the needs of users to purchase liquid crystal display devices. equipment needs.

In order to achieve the purpose herein, the present invention provides a backlight structure, comprising: an array substrate; a reflective polarizing layer disposed on the back of the array substrate; and a light source disposed on one side of the array substrate; wherein: The light source is used to inject the light emitted by it into the array substrate from the said side of the array substrate and irradiate on the reflective polarizing layer; the reflective polarizing layer is used to irradiate the The reflected light is reflected, and the reflected light is polarized and emitted from the front surface of the array substrate.

Optionally, the side surface of the one side of the array substrate is inclined relative to the front surface of the array substrate, and the included angle between the side surface of the one side of the array substrate and the front surface of the array substrate is an obtuse angle.

Optionally, the included angle between the side surface of the one side of the array substrate and the front surface of the array substrate is 120 degrees, the light emitting angle of the light source is 120 degrees, and the refractive index of the array substrate is 1.5.

Optionally, the included angle between the side surface of the one side of the array substrate and the back surface of the array substrate is 60 degrees.

Optionally, the reflective polarizing layer is deposited on the array substrate by photolithography.

Optionally, the reflective polarizer is a WGP wire grid polarizer or a DBEF reflective polarizer.

Optionally, the array substrate is a thin film transistor substrate provided with an array layer on the front, and the light source is an LED.

Optionally, the thin film transistor substrate is made of glass or flexible material.

The present invention also provides a liquid crystal display device, comprising the backlight structure and the display structure described in any one of the above embodiments, and the display structure is arranged on the front side of the array substrate.

Optionally, the display structure includes: a liquid crystal layer disposed on the front surface of the array substrate; a display panel layer disposed on the liquid crystal layer; and an upper polarizing layer disposed on the display panel layer .

Compared with the prior art, in the backlight structure provided by the present invention, the light emitted by the light source enters the array substrate from one side of the array substrate, and is emitted from the front of the array substrate after being reflected by the reflective polarizing layer on the back of the array substrate, replacing The existing plastic frame backlight structure is simpler and thinner. When it is applied to a liquid crystal display device, there is no need to install a glass substrate. The resulting liquid crystal display device saves the thickness of a glass substrate. The thickness of the liquid crystal display device can be It can be made smaller and lighter in quality.

Additional features and advantages herein will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice. The objectives and other advantages herein will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

The accompanying drawings are used to provide a further understanding of the technical solutions herein, and constitute a part of the description, and are used together with the embodiments of the application to explain the technical solutions herein, and do not constitute limitations to the technical solutions herein.

FIG. 1 is a schematic structural view of a backlight structure according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a liquid crystal display device according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a liquid crystal display device according to another embodiment of the present invention.

Wherein, the corresponding relationship between reference numerals and component names in Fig. 1 to Fig. 3 is:

1 array substrate, 2 reflective polarizing layer, 3 light source, 4 liquid crystal layer, 5 display panel layer, 6 upper polarizing layer, 7 thin film transistor substrate, 8 array layer.

detailed description

In order to make the purpose, technical solutions and advantages of this document clearer, the embodiments of this document will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

In the following description, a lot of specific details are set forth in order to fully understand this article, but this article can also be implemented in other ways than described here, therefore, the protection scope of this article is not limited by the specific embodiments disclosed below .

The backlight structure and liquid crystal display device of some embodiments herein will be described below with reference to the accompanying drawings.

The backlight structure provided by the present invention, as shown in FIG. 1 , includes: an array substrate 1; a reflective polarizing layer 2 disposed on the back of the array substrate 1; and a light source 3 disposed on one side of the array substrate 1 ; Wherein: the light source 3 is used to inject the light emitted by it into the array substrate 1 from the one side of the array substrate 1 and irradiate on the reflective polarizing layer 2; the reflective polarizer The layer 2 is used for reflecting the light irradiated thereon, and at the same time polarizing the reflected light and emitting it from the front side of the array substrate 1 .

In the backlight structure provided by the present invention, the light emitted by the light source 3 enters the array substrate 1 from one side of the array substrate 1, is reflected by the reflective polarizing layer 2 on the back of the array substrate 1, and then emits from the front of the array substrate 1, replacing the existing Some plastic frame backlight structures are simpler and thinner. When applied to liquid crystal display devices, there is no need to install a glass substrate. The resulting liquid crystal display device saves the thickness of a glass substrate. The thickness of the liquid crystal display device can be made Smaller and lighter in quality.

Preferably, the light source 3 can be arranged on the left side of the array substrate 1, or on the right side of the array substrate 1, etc., both of which can achieve the purpose of this application, and its purpose does not deviate from the design concept of the present invention. No more details are given here, and all should belong to the protection scope of the present application.

Optionally, the side of the one side of the array substrate 1 is inclined relative to the front of the array substrate 1, and the angle between the side of the one side of the array substrate 1 and the front of the array substrate 1 is is an obtuse angle, the light source 3 is arranged parallel to the side surface of the one side of the array substrate 1, and the light from the light source 3 entering the array substrate 1 from the one side of the array substrate 1 is at most parallel to the front surface of the array substrate 1, Ensure that it is directly irradiated on the reflective polarizing layer 2 on the back of the array substrate 1 to avoid direct emission from the front of the array substrate 1 and affect the normal display of the display.

Part of the light irradiated on the reflective polarizing layer 2 is reflected, and the other part is transmitted. The transmitted light is emitted from the back of the array substrate 1 , and the emitted part can be increased by multi-layer evaporation to increase reflection.

Specifically, as shown in FIG. 1 , the angle A between the side surface of the array substrate 1 and the front of the array substrate 1 is 120 degrees, the light emitting angle B of the light source 3 is 120 degrees, and The side facing the side of the array substrate 1, the refractive index of the array substrate 1 is 1.5; the light rays incident into the array substrate 1 through the above parameters will not be directly irradiated on the front surface of the array substrate and emitted (at most parallel on the front of the array substrate 1) to ensure the display effect.

Optionally, the angle C between the side surface of the one side of the array substrate 1 and the back surface of the array substrate 1 is 60 degrees.

The front side and the back side of the fabricated array substrate 1 are parallel, which is more convenient for the layout, manufacture and storage of the array substrate 1 , and is beautiful and thin.

Of course, the included angle between the side of the array substrate 1 and the back of the array substrate can also be 10 degrees, 20 degrees, 30 degrees, 70 degrees, 80 degrees, 120 degrees, etc., all of which can achieve the purpose of this application. Its purpose does not deviate from the design concept of the present invention, so it will not be repeated here, and all should belong to the protection scope of the present application.

Arrows in Figure 1 indicate light rays.

Optionally, the reflective polarizing layer 2 is deposited on the array substrate 1 by using photolithography technology, and its formation process is simple and efficient, which is more convenient for enterprises to manufacture.

Of course, the reflective polarizing layer 2 can also be directly spray-printed on the array substrate 1, etc., all of which can achieve the purpose of this application, and its purpose does not deviate from the design concept of the present invention. within the scope of protection applied for.

Specifically, the reflective polarizing layer 2 is a WGP (wire grid polarizer) wire grid polarizer or a DBEF (Dual Brightness Enhancement Film) reflective polarizer.

Specifically, the array substrate 1 is a thin film transistor substrate provided with an array layer on the front side, and the light source 3 is an LED.

Wherein, the material of the thin film transistor substrate is a transparent plate such as glass, resin or flexible material, all of which can achieve the purpose of this application. within the scope of protection.

The liquid crystal display device provided by the present invention includes the backlight structure and the display structure described in any one of the above embodiments, and the front surface of the array substrate 1 is provided with the display structure.

The liquid crystal display device provided by the invention has all the advantages of the backlight structure, and the thickness is thinner and the weight is lighter after being manufactured.

Moreover, the liquid crystal display device can realize AR (Augmented Reality, augmented reality) effect or transparent display.

Optionally, the display structure includes: a liquid crystal layer 4 disposed on the front surface of the array substrate 1; a display panel layer 5 disposed on the liquid crystal layer 4; and an upper polarizing layer 6 disposed on the above the display panel layer 5.

The liquid crystal display device omits structures such as glass substrates, and the resulting liquid crystal display device is lighter and thinner.

To sum up, in the backlight structure provided by the present invention, the light emitted by the light source is injected into the array substrate from one side of the array substrate, reflected by the reflective polarizing layer on the back of the array substrate, and emitted from the front of the array substrate, replacing the existing The plastic frame backlight structure is simpler and thinner. When it is applied to a liquid crystal display device, there is no need to install a glass substrate. The resulting liquid crystal display device saves the thickness of a glass substrate. The thickness of the liquid crystal display device can be made Smaller and lighter in weight.

The present invention also provides a backlight structure (shown in conjunction with FIG. 3 ), comprising: a thin film transistor substrate 7; a reflective polarizing layer 2 arranged on the front surface of the thin film transistor substrate 7; and a light source 3 arranged on the One side of the thin film transistor substrate 7 is arranged on the back side of the thin film transistor substrate 7; wherein: the light source 3 is used to inject the light emitted by it from the one side of the thin film transistor substrate 7 into the thin film transistor substrate 7 and irradiates on the reflective polarizing layer 2; the reflective polarizing layer 2 is used to transmit the light irradiated thereon, and at the same time polarize the transmitted light and transmit it from the front side of the thin film transistor substrate 7 Injection can also achieve the purpose of this application, and its purpose does not deviate from the design concept of the present invention, so it will not be repeated here.

The liquid crystal display device provided by the present invention, as shown in FIG. 3 , includes the backlight structure and the display structure described in any one of the above embodiments, and the display structure is provided on the front side of the thin film transistor substrate 7 .

Wherein, as shown in FIG. 3 , the display structure includes: an array substrate 1, the reflective polarizing layer 2 whose back faces the front surface of the thin film transistor substrate 7, and a liquid crystal layer 4 arranged on the front surface of the array substrate 1; The panel layer 5 is arranged on the liquid crystal layer 4 ; and the upper polarizing layer 6 is arranged on the display panel layer 5 .

Preferably, the array substrate 1 is a glass substrate provided with an array layer 8 on the front, and the reflective polarizer layer 2 is a WGP (wire grid polarizer) wire grid polarizer or a DBEF (Dual Brightness Enhancement Film) reflective polarizer.

In the description herein, the terms "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection ; It can be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms herein according to specific situations.

In the description of this specification, descriptions of the terms "one embodiment", "some embodiments", "specific embodiments" and the like mean that specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included herein. In at least one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the implementations disclosed herein are as above, the content described is only the implementations adopted to facilitate the understanding of this article, and is not intended to limit this article. Anyone skilled in the field of this article can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed herein. The scope defined in the claims shall prevail.

Claims (10)

1. A backlight structure, characterized in that, comprising: Array substrate; a reflective polarizing layer disposed on the back of the array substrate; and The light source is arranged on one side of the array substrate; wherein: The light source is used to inject the light emitted by it into the array substrate from the one side of the array substrate and irradiate on the reflective polarizing layer; The reflective polarizing layer is used to reflect the light irradiated thereon, polarize the reflected light and emit it from the front surface of the array substrate. 2. The backlight structure according to claim 1, wherein the side surface of the one side of the array substrate is inclined relative to the front side of the array substrate, and the side surface of the one side of the array substrate is aligned with the front side of the array substrate. The included angle between the front of the array substrate is an obtuse angle. 3. The backlight structure according to claim 2, wherein the angle between the side of the one side of the array substrate and the front of the array substrate is 120 degrees, and the light emitting angle of the light source is 120 degrees , the refractive index of the array substrate is 1.5. 4 . The backlight structure according to claim 3 , wherein an angle between the side surface of the one side of the array substrate and the back surface of the array substrate is 60 degrees. 5. The backlight structure according to claim 1, wherein the reflective polarizing layer is deposited on the array substrate by photolithography. 6. The backlight structure according to claim 1, wherein the reflective polarizing layer is a WGP wire grid polarizer or a DBEF reflective polarizer. 7. The backlight structure according to any one of claims 1 to 6, wherein the array substrate is a thin film transistor substrate with an array layer disposed on the front, and the light source is an LED. 8. The backlight structure according to claim 7, wherein the thin film transistor substrate is made of glass or flexible material. 9. A liquid crystal display device, characterized in that it comprises the backlight structure and the display structure according to any one of claims 1 to 8, and the display structure is arranged on the front side of the array substrate. 10. The liquid crystal display device according to claim 9, wherein the display structure comprises: a liquid crystal layer disposed on the front surface of the array substrate; a display panel layer disposed on the liquid crystal layer; and The upper polarizing layer is arranged on the display panel layer.